Can I download OS X 10.5 to my PowerBook G4
Can I download OS X 10.5 to my PowerBook G4? I just bought an iphone and can't activate it without ITunes 10. I can't download ITunes 10 because my operating system is OS X 10.4.11 and ITunes 1`0 needs OS X 10.5.
PowerBook, Mac OS X (10.4.11)